1979-75-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1979-75-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,7 and 9 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1979-75:
(6*1)+(5*9)+(4*7)+(3*9)+(2*7)+(1*5)=125
125 % 10 = 5
So 1979-75-5 is a valid CAS Registry Number.